1. When the mother-in-law is ill, the daughter-in-law has no obligation to take care of her. The law does not stipulate that a mother-in-law needs a daughter-in-law to take care of her illness, so this is not a legal obligation, but from a moral point of view, a daughter-in-law should take care of her. Among them, the elderly care for the elderly is based on home, family members should respect, care and take care of the elderly, and supporters should make the sick elderly get timely treatment and care; For the elderly with financial difficulties, medical expenses should be provided.

2. Legal basis: Article 14 of the Law of the People's Republic of China on the Protection of the Rights and Interests of the Elderly.

The supporter shall fulfill the obligation of providing financial assistance, life care and spiritual comfort to the elderly and take care of their special needs.

Supporters refer to the children of the elderly and other people who have the obligation to support according to law.

The spouse of the supporter shall assist the supporter in fulfilling his maintenance obligations.

Second, what is the scope of support?

1, adult children of the elderly, including dependent children, adopted children and stepchildren;

2. The spouse of the elderly shall assist the supporter in fulfilling his maintenance obligations;

3. Adult grandchildren and grandchildren of the elderly are usually only when the children of the elderly die before them or lack the ability to support and support them. Grandchildren and grandchildren shall bear the obligation of support;

4. Brothers and sisters who depend on the elderly.